Call-prep brief · checked 2026-09-01
Cardiff Bus (Bws Caerdydd)
Grade F · 38.8 / 100
Down 28.0 points since 2026-08-31 (D to F).
For this call: lead with the grade and the three fixes below, then confirm the feed is current and the rider information is complete. Each fix is framed as a next step, not a failure.
What changed since the last check
- Correctness down 15.2
- Freshness down 85.0
- Rider experience no change
No longer reported since the last check (1 finding):
- Some trip headsigns name a stop along the way, not the final destination. (trip_headsign_matches_intermediate_stop)
This compares feed state. It does not identify who made a change or why.
Top three things to fix
Re-export with a validity window that reaches at least 60 days out.
Service data runs out in 3 day(s). When the calendar runs out, trip planners stop showing this agency. Fixing it now is calmer than after riders notice.
Effort: One export setting.
Review the rule documentation for 'block_trips_with_overlapping_stop_times' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Block trips with overlapping stop times (flagged by the MobilityData validator). See the linked rule for what this affects.
Effort: Varies.
Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
1653 of 1653 stops don't say whether a wheelchair user can board there. Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.
Effort: A column in stops.txt; your scheduling software likely has it.
Finding handoff
Move one finding to a recheck
Select one finding. Copy the request, make the change in the feed-producing tool, then compare the next complete run.
- Feed evidence
- Service data runs out in 3 day(s).
- Next action
- Re-export with a validity window that reaches at least 60 days out.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
- Feed evidence
- Block trips with overlapping stop times (flagged by the MobilityData validator).
- Next action
- Review the rule documentation for 'block_trips_with_overlapping_stop_times' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
- Feed evidence
- 1653 of 1653 stops don't say whether a wheelchair user can board there.
- Next action
- Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
Ready to send to the agency
Hi Cardiff Bus (Bws Caerdydd) team, Service data runs out in 3 day(s). When the calendar runs out, trip planners stop showing this agency. Fixing it now is calmer than after riders notice. The fix is usually one export setting: Re-export with a validity window that reaches at least 60 days out. This came from your GTFS data quality scorecard, which checks the feed you publish and lists the fixes in plain language: https://gtfsscorecard.org/agency/cardiff-bus/
Key facts
- Feed URL
- https://data.discoverpassenger.com/operator/ccts/dataset/current/download/gtfs
- Last checked
- 2026-09-01
- Service window
- 3 days of service data remain. Last service date 2026-09-04.
- Location
- Cardiff [Caerdydd GB-CRD], United Kingdom
A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.3, validator 8.0.1.